Book/Report

FZJ-2016-05050

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Untersuchungen an Rohrproben aus INCOLOY 800 H bei einachsiger und mehrachsiger Beanspruchung

Rödig, M.FZJ* ; Penkalla, H. J.FZJ* ; Franzke, K.FZJ* ; Schubert, F.FZJ* ; Nickel, H.FZJ*

1985
Kernforschungsanlage Jülich GmbH, Zentralbiliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/12431

Report No.: Juel-1979

Abstract: In order to verify the transferability of materials data and constitutive equations in the high temperature region, uniaxial and multiaxial creep tests were performed with tubes made of X10 NiCrAlTi 32 20 (INCOLOY 800H). The tubes were loaded by a combination of tension, internal pressure and torsion. The temperature was 950 °C. The life-time of the heat exchanger tubes under pure uniaxial tension was foung to be longer than the time to rupture of bar material made from the same parent heat. The heat exchanger tubes show a signigicant creep hardening in the primary creep range and a later onset of the secondary creep range. For the heat exchanger tubes under different multiaxial loading conditions different life times were measured, although in all cases the same deviatoric stress (v. Mises) was used. For the experiments presented in this paper these differences can be explained by constitutive equations. The deformation of the heat exchanger tubes under multiaxial loadings cannot be predicted exactly by the postulated mathematical model.In the experiments with combined loading conditions the tubes failed by leak formation and fracture respectively - a spontaneous failure was never found.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000 ; Retrocat)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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